Heavy Duty 4 Slots Version Design: ULBRE Vertical Laptop stand upgraded to include 4 slots, allowing you to hold two laptops, phones, and Airpods vertically at the same time. This design optimizes your desktop space and helps to keep your desk organized and free of clutter. The ULBRE Vertical Laptop Stand is adjustable in size, allowing you to fit laptops with thicknesses ranging from 15mm/0.59 inches to 40mm/1.57 inches. The stand comes with an adjustable hexagon wrench for easy size adjustments.